First let me say that the more I sit and listen and have the EHF-100 in my system the more the sound seems to improve. And yes, my pessimistic super hearing Golden Eared friends will tell me that this is a psychoacoustic effect and I am simply acclimating to the sound. Not so! There is much more to be said. My primary listening preference is always the sound of a human voice, it is this I know best. I will use a wonderful Clarity Cable compilation demo disc given to me at the Las Vegas CES, it is this disc that I now refer too.